Catheter



FIG. 1 is a perspective view of an embodiment of a catheter;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The broken-line disclosure is understood to be for illustrative purposes only, and forms no part of the claimed design. 

CLAIM The ornamental design for a catheter, as shown and described. 